Window-regulator



I. T. ALLIVIAND AND I. D. LAWRENCE.

WINDOW REGULATOR.

APPLICATION FILED APILI. 1910.

Patented Sept. 30

. HUUR/VE a slide slidable through said brackets, a 4wheel rotatably mounted 'on the slide, a linear member running ver'the wheel vfor transmitting motion, and a spring between one of the brackets and a' portion of the slide 'for tensioningthe' linear-member.

t 2. 'In a window regulator, the combinationv of a pair of rotatable members, a line member running over the same andoper ting to lift the window, and a bearing for oneof the'rotatable members which is both slidable and rotatable through a given arc,

means for y-ieldingly pressing the bearing I .Y towardv ,the end ofits sliding movement to v said wheel.- u A 4. In a window regulator, the combination tension 4the linear member, the rotatable fea-A l ture of the bearing, serving to avoid the chain running oil" from the.- rotatable mem-l l bers by allowing one of the same to swing.`

3. In a window regulator, the-combination of a strap', a pair of brackets protruding latf .erally from the strap, a. member provided with trunnion-like ends adapted to be rotatably supportedin said brackets, a wheel rotatablyvmounted on said member, and a linear transmission member' running over of 3 sprocket, a chain running over'the v over the.' sprocket.a slide slidable on the 'sprocket,a slide provided with,v a bearing upon which the' sprocket is rotatable,l said slide being rockingly mounted to allow the lsprocket to swi given-1 limits, an vlfalsprin for pressing the s lidet'o tension the'said c ain; f j f 5.- In awindow regulator, the'combination of v a ,support', `a @sprocket a chain vrunning support and Vhaving a trunnionvlike rocking i movement onthe'said `support,. and a s pressing against' the slide, said slide eing provided with. a' bearing to supportthe sprocket rotatabl 6. In a window regulator, the', combinafrom side to side within Lemie@ tion of a support provided with a pair o brackets forming slide and trunnion bearings, a slide provided 'with a pair of cylin.u drlcal ends to form trunnions that engage in the said brackets, a sprocket' rotatably 1 supported on the slide, a spring engagingl between one bracket and the slide, and a chain running over the sprocket to tension' said spring, the said sprocket being capable of swinging from side to side within given .limits- 7; v In a window regulator, the combination of an upper sprocket and' a lower sprocket,

v a support forconnecting the same, a slide for the .lower sprocket both slidably and -rockably mountedupon thesaid support, a

chain running over "the sprockets, and .a sprlng engaging against the slide to slide the same and tension the said chain. f

i' 8. In a window regulator, the combination o f an upper and lower sprocket, a supportconnecting the same, a slide for mounting the lower sprocket which is provided slidable, with respect to the said support,

and a spring bearing against-the support and against .the slidefor moving'the lowe sprocket and tensioning the-chain.

9. a window regulator, the combination o'f van upper and' a lower sprocket, a

'supportior connecting :the same, a chain run-ning over the sprockets, a Slide for rotatably mounting the lower sprocket which is both rockingly-and slidingly mounted on the support,a felt washer carried by the slide, and a spring between thesupport and the slide lfor i ythe chainf l l In. witness' where 'f we have hereunto set "our hands Orl-jule10th dayQfApri1,19i9.

1 f JOHN T: LLMAND."

'projecting the slide to ltension ,y

i.' .JOHN n. LAwaENcnf 

